JamesDylanHigbe

Defiant

Giant Killer

Survive the rooftop strider battle in the ruins of City 17.

Hallowed Ground

Keep Off the Sand!

Cross the antlion beach in chapter Sandtraps without touching the sand.

Singularity Collapse

Plaza Defender

Survive the generator plaza standoff in chapter Anticitizen One.

Zombie Chopper

Play through Ravenholm using only the Gravity Gun.

Fight the Power

Shut down the supression device by disabling its generators.

Radiation Levels Detected

Get through the toxic tunnel under City 17 in Half-Life 2.

Warden Freeman

Survive the second turret standoff in Nova Prospekt.

What cat?

Break the mini-teleporter in Kleiner's Lab.

Atomizer

Disintegrate 15 soldiers by throwing them into a Combine ball field.

Malcontent

Escape the apartment block raid.

Lambda Locator

Find all lambda caches in Half-Life 2.

Blast from the Past

Find the HEV Suit Charger faceplate in Eli's scrapyard.

Vorticough

Discover the hidden singing vortigaunt cave in chapter Water Hazard.

Follow Freeman

Gain command of a squad of rebels in the uprising.

Anchor's Aweigh!

Get the airboat.

Heavy Weapons

Get the airboat's mounted gun.

Trusty Hardware

Get the crowbar.

Zero-Point Energy

Get the Gravity Gun in Black Mesa East.

Counter-Sniper

Kill all of the snipers in City 17.

Barnacle Bowling

Kill five barnacles with one explosive barrel.

Revenge!

Destroy the Hunter-Chopper.

Bug Hunt

Use the Antlions to kill 50 enemies.

OSHA Violation

Kill 3 enemies using the crane.

Flushed

Kill an enemy with a toilet.

Where Cubbage Fears to Tread

Two Points

Use Dog's ball to make a basket in the scrapyard.

Targeted Advertising

Pin a soldier to the billboard in the chapter Highway 17.

Submissive

One Man Army

Destroy six gunships in Half-Life 2.

Hack Attack!

Kill five enemies with a Manhack.